2143031252 has 6 divisors (see below), whose sum is σ = 3750304698. Its totient is φ = 1071515624.

The previous prime is 2143031243. The next prime is 2143031257. The reversal of 2143031252 is 2521303412.

It can be written as a sum of positive squares in only one way, i.e., 1862267716 + 280763536 = 43154^2 + 16756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143031257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267878903 + ... + 267878910.

It is an arithmetic number, because the mean of its divisors is an integer number (625050783).

Almost surely, 2^2143031252 is an apocalyptic number.

It is an amenable number.

2143031252 is a deficient number, since it is larger than the sum of its proper divisors (1607273446).

2143031252 is a wasteful number, since it uses less digits than its factorization.

2143031252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535757817 (or 535757815 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2143031252 is about 46292.8855441093. The cubic root of 2143031252 is about 1289.2669055445.

Adding to 2143031252 its reverse (2521303412), we get a palindrome (4664334664).

The spelling of 2143031252 in words is "two billion, one hundred forty-three million, thirty-one thousand, two hundred fifty-two".